There are languages, like C#, Java, and Kotlin, where the language design basically assumes an IDE is being used. It's just not practical or useful to deal with imports and their structure. Sure you can look them up on javadocs and copy/paste the import path. But at that point why not just use an ide? Why learn a skill you'll basically never use or need?
I was more productive than I suspect someone with just an IDE would have been, considering the volume of complex non-coding issues I needed to learn about and solve.
